Mercury in flounder,Platichtys flesus, cod,Gadus morhua, and perch,Perca fluviatilis, in relation to their length and environment - Luten, J. B.; Bouquet, W.; Riekwel-Booy, G.; Rauchbaar, A. B.; Scholte, M. W. M. (Bulletin of Environmental Contamination and Toxicology, 1987)